. >> secretary of state hillary clinton echoed obama's words. she says the use of chemical weapons is a red line for the u.s. she warned her country would certainly plan to take action should that happen. foreign ministry spokespersons in syria have responded to clinton and obama. they say even if such weapons were available the assad administration would not use them under any circumstances against the syrian people. >>> aid workers from the united nations and the european union continue to provide humanitarian services even after u.n. cease-fire monitors withdrew from syria in august. now officials have decided to withdraw their remaining personnel. they say it's just too dangerous. >> the united nations and syria will pull out non-essential international personnel with immediate effect. >> nesirky said any u.n. personnel who stay behind will be restricted to the capital damascus. eu sources said their ambassador and two other diplomats would be recalled. they say about ten syrian employees will take over information gathering and liaison acti